The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/pcm/feeder_if.m

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    1 #-
    2 # KOBJ
    3 #
    4 # Copyright (c) 2000 Cameron Grant <cg@freebsd.org>
    5 # All rights reserved.
    6 #
    7 # Redistribution and use in source and binary forms, with or without
    8 # modification, are permitted provided that the following conditions
    9 # are met:
   10 # 1. Redistributions of source code must retain the above copyright
   11 #    notice, this list of conditions and the following disclaimer.
   12 # 2. Redistributions in binary form must reproduce the above copyright
   13 #    notice, this list of conditions and the following disclaimer in the
   14 #    documentation and/or other materials provided with the distribution.
   15 #
   16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26 # SUCH DAMAGE.
   27 #
   28 # $FreeBSD: releng/11.2/sys/dev/sound/pcm/feeder_if.m 139749 2005-01-06 01:43:34Z imp $
   29 #
   30 
   31 #include <dev/sound/pcm/sound.h>
   32 
   33 INTERFACE feeder;
   34 
   35 CODE {
   36 
   37         static int
   38         feeder_noinit(struct pcm_feeder* feeder)
   39         {
   40                 return 0;
   41         }
   42 
   43         static int
   44         feeder_nofree(struct pcm_feeder* feeder)
   45         {
   46                 return 0;
   47         }
   48 
   49         static int
   50         feeder_noset(struct pcm_feeder* feeder, int what, int value)
   51         {
   52                 return -1;
   53         }
   54 
   55         static int
   56         feeder_noget(struct pcm_feeder* feeder, int what)
   57         {
   58                 return -1;
   59         }
   60 
   61 };
   62 
   63 METHOD int init {
   64         struct pcm_feeder* feeder;
   65 } DEFAULT feeder_noinit;
   66 
   67 METHOD int free {
   68         struct pcm_feeder* feeder;
   69 } DEFAULT feeder_nofree;
   70 
   71 METHOD int set {
   72         struct pcm_feeder* feeder;
   73         int what;
   74         int value;
   75 } DEFAULT feeder_noset;
   76 
   77 METHOD int get {
   78         struct pcm_feeder* feeder;
   79         int what;
   80 } DEFAULT feeder_noget;
   81 
   82 METHOD int feed {
   83         struct pcm_feeder* feeder;
   84         struct pcm_channel* c;
   85         u_int8_t* buffer;
   86         u_int32_t count;
   87         void* source;
   88 };

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